:root{--ink:#16394b;--ink-soft:#54798c;--paper:#e4f2f6;--paper-deep:#d2e8ee;--card:#fff;--sea:#c9e9e2;--gold:#f0b33c;--gold-deep:#c2933f;--coral:#ff6b4a;--line:#c6dde5;--thogai-teal:#35a08e;--thogai-blue:#4f8fb8;--thogai-indigo:#22315e;--font-display:"Baloo 2", "Comic Sans MS", cursive;--font-body:"Nunito", "Segoe UI", sans-serif;--radius-lg:28px;--radius-md:18px;--shadow-card:0 6px 0 #16394b17;--shadow-pop:0 10px 24px #16394b33}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:var(--font-body);background:radial-gradient(circle at 85% -5%, #35a08e29, transparent 45%), radial-gradient(circle at -10% 35%, #4f8fb824, transparent 42%), radial-gradient(circle at 70% 105%, #c2933f1a, transparent 40%), var(--paper);color:var(--ink);-webkit-font-smoothing:antialiased;background-attachment:fixed;overflow-x:hidden}#root{flex-direction:column;min-height:100vh;display:flex}h1,h2,h3{font-family:var(--font-display);font-weight:700;line-height:1.1}button{cursor:pointer;color:inherit;background:0 0;border:none;font-family:inherit}button:focus-visible,a:focus-visible{outline:4px solid var(--gold);outline-offset:3px;border-radius:12px}.screen{width:100%;max-width:720px;padding:16px 16px calc(24px + env(safe-area-inset-bottom));flex-direction:column;flex:1;margin:0 auto;display:flex}.screen-header{align-items:center;gap:12px;padding:4px 0 16px;display:flex}.screen-title{flex:1;font-size:clamp(26px,6vw,38px)}.back-button,.hear-button{background:var(--card);width:52px;height:52px;box-shadow:var(--shadow-card);color:inherit;border-radius:50%;flex:none;place-items:center;font-size:23px;text-decoration:none;transition:transform 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var(--thogai-teal) 48% 78%, #12695c 100%)}.marble.gold{--marble-color:var(--gold);--marble-deep:var(--gold-deep)}.marble.locked{--marble-color:#b9b4c4;--marble-deep:#8d8a9c;opacity:.55;filter:saturate(.35)}@keyframes bob{0%,to{transform:translateY(0)}50%{transform:translateY(-7px)}}.marble.ready{animation:1.6s ease-in-out infinite bob}@keyframes pop-in{0%{opacity:0;transform:scale(.4)}70%{transform:scale(1.15)}to{opacity:1;transform:scale(1)}}.pop-in{animation:.45s cubic-bezier(.2,1.4,.4,1) pop-in}@media (prefers-reduced-motion:reduce){.marble.ready,.hear-button.speaking{animation:none}*{transition-duration:.01ms!important;animation-duration:.01ms!important}}.big-card{background:var(--card);border-radius:var(--radius-lg);width:100%;box-shadow:var(--shadow-card);text-align:left;align-items:center;gap:16px;padding:18px 20px;transition:transform .15s;display:flex}.big-card:active{transform:scale(.97)}.footer-note{text-align:center;color:var(--ink-soft);padding:20px 16px 4px;font-size:12px}.footer-note a{color:inherit}.logo-block{text-align:center;padding:36px 0 8px}.logo-block h1{font-size:clamp(34px,9vw,52px);font-weight:800}.logo-block p{color:var(--ink-soft);font-size:15px}.logo-marble{width:76px;height:76px;margin:0 auto 10px}.who{text-align:center;color:var(--ink-soft);padding:26px 0 14px;font-size:22px}.profile-grid,.avatar-grid{grid-template-columns:repeat(auto-fill,minmax(104px,1fr));gap:14px;padding-top:10px;display:grid}.profile-bubble{background:var(--card);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);flex-direction:column;align-items:center;gap:8px;padding:18px 10px 14px;transition:transform .15s;display:flex}.profile-bubble:active{transform:scale(.94)}.profile-bubble.new{background:var(--paper-deep);border:3px dashed var(--line);box-shadow:none}.profile-avatar{font-size:44px;line-height:1}.profile-name{font-family:var(--font-display);font-size:16px;font-weight:700}.avatar-bubble{background:var(--card);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:16px 0;font-size:46px;transition:transform .15s}.avatar-bubble:active{transform:scale(.92)}.avatar-bubble.picked{margin:0 auto;padding:22px;font-size:64px}.name-form{flex-direction:column;align-items:center;gap:18px;padding-top:22px;display:flex}.name-form input{font-family:var(--font-display);text-align:center;border:3px solid var(--line);border-radius:var(--radius-md);background:var(--card);color:var(--ink);width:min(320px,90%);padding:14px 18px;font-size:24px}.name-form 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#0000004d);font-size:30px}.stone-label{font-family:var(--font-display);text-align:center;color:var(--ink);background:color-mix(in srgb, var(--card) 82%, transparent);border-radius:10px;padding:3px 8px;font-size:13px;font-weight:600;line-height:1.15}.island-complete{text-align:center;font-family:var(--font-display);background:var(--card);border-radius:var(--radius-lg);box-shadow:var(--shadow-pop);margin-top:18px;padding:18px;font-size:20px;font-weight:700}.lesson-title{font-size:clamp(22px,5vw,30px)}.lesson-body{flex-direction:column;flex:1;gap:18px;display:flex}.lesson-text{background:var(--card);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);border-left:8px solid var(--world-color);padding:20px 22px;font-size:19px;line-height:1.55}.lesson-goals{background:var(--paper-deep);border-radius:var(--radius-lg);padding:18px 22px}.lesson-goals h2{align-items:center;gap:10px;padding-bottom:8px;font-size:18px;display:flex}.lesson-goals .hear-button{width:40px;height:40px;font-size:17px}.lesson-goals ul{list-style:none}.lesson-goals li{padding:4px 0 4px 28px;font-size:16px;line-height:1.5;position:relative}.lesson-goals li:before{content:"✦";color:var(--world-color);position:absolute;left:4px}.learn-cta{background:var(--world-color);box-shadow:0 6px 0 color-mix(in srgb, var(--world-color) 70%, #1c1b3a);margin:22px auto 0}.already-done{text-align:center;color:var(--ink-soft);padding:20px 0 8px;font-weight:700}.mastered-banner{text-align:center;background:var(--card);border-radius:var(--radius-lg);box-shadow:var(--shadow-pop);font-family:var(--font-display);flex-direction:column;align-items:center;gap:12px;margin-top:18px;padding:24px;font-size:20px;font-weight:700;display:flex}.big-marble{place-items:center;width:90px;height:90px;font-size:40px;display:grid}.lesson-hook{font-family:var(--font-display);font-size:21px;font-weight:700;line-height:1.35}.lesson-extra{background:var(--card);border-radius:var(--radius-md);box-shadow:var(--shadow-card);align-items:flex-start;gap:12px;padding:14px 16px;font-size:16px;line-height:1.45;display:flex}.lesson-extra>span[aria-hidden]{font-size:24px}.lesson-extra>div{flex:1}.lesson-extra .hear-button{width:40px;height:40px;font-size:16px}.fun-fact{background:color-mix(in srgb, var(--gold) 18%, var(--card))}.quiz-progress{flex:1;justify-content:center;gap:8px;display:flex}.quiz-dot{background:var(--line);border-radius:50%;width:14px;height:14px}.quiz-dot.done{background:var(--gold)}.quiz-dot.now{background:var(--world-color);transform:scale(1.25)}.quiz-question{text-align:center;padding:10px 0 22px;font-size:clamp(22px,5.5vw,30px);line-height:1.25}.quiz-options{flex-direction:column;gap:14px;display:flex}.quiz-option{text-align:left;font-family:var(--font-display);background:var(--card);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);border:4px solid #0000;align-items:center;gap:14px;padding:14px 16px;font-size:19px;font-weight:600;line-height:1.25;transition:transform .12s,border-color .12s;display:flex}.quiz-option>span:nth-child(2){flex:1}.quiz-option:active{transform:scale(.97)}.quiz-option.right{background:#e9f7e9;border-color:#4caf50}.quiz-option.wrong{border-color:var(--coral);background:#ffefe9}.quiz-option.dim{opacity:.45}.quiz-option 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select{border-radius:var(--radius-md);border:2px solid var(--line);background:var(--card);color:var(--ink);padding:8px 10px;font-family:inherit;font-size:15px}.parent-tabs{gap:6px;padding-bottom:14px;display:flex;overflow-x:auto}.parent-tabs button{color:var(--ink-soft);background:var(--card);box-shadow:var(--shadow-card);border-radius:999px;flex:none;padding:8px 14px;font-size:14px;font-weight:700}.parent-tabs button.active{background:var(--ink);color:var(--paper)}.parent-body{flex-direction:column;gap:12px;display:flex}.parent-empty,.parent-hint{color:var(--ink-soft);line-height:1.5}.parent-empty{text-align:center;padding:32px 8px}.parent-subject{background:var(--card);border-radius:var(--radius-md);box-shadow:var(--shadow-card);padding:10px 14px}.parent-subject-row{text-align:left;align-items:center;gap:12px;width:100%;display:flex}.parent-subject-name{font-family:var(--font-display);flex:1;font-size:17px;font-weight:700}.parent-subject-count{color:var(--ink-soft);font-weight:700}.parent-island{margin:8px 0 4px 60px}.parent-island summary{cursor:pointer;padding:4px 0;font-weight:700}.parent-island ul{padding:4px 0 4px 12px;list-style:none}.parent-island li{padding:3px 0}.parent-island label{align-items:baseline;gap:8px;display:flex}.parent-chevron{color:var(--ink-soft);font-size:18px}.peek-list{padding:4px 0 4px 4px;list-style:none}.peek-row{text-align:left;border-radius:12px;align-items:center;gap:10px;width:100%;padding:9px 8px;display:flex}.peek-row:active{background:var(--paper-deep)}.peek-name{flex:1;font-weight:600}.status-dot{border-radius:50%;flex:none;width:11px;height:11px}.status-dot.verified,.status-dot.mastered{background:var(--gold)}.status-dot.unlocked{background:var(--thogai-teal)}.status-dot.locked{background:var(--line)}.status-pill{white-space:nowrap;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:700}.status-pill.verified,.status-pill.mastered{background:color-mix(in srgb, var(--gold) 26%, #fff);color:var(--gold-deep)}.status-pill.unlocked{background:color-mix(in srgb, var(--thogai-teal) 20%, #fff);color:#16695c}.status-pill.locked{background:var(--paper-deep);color:var(--ink-soft)}.peek-overlay{z-index:50;background:#16394b80;justify-content:center;align-items:flex-end;padding:0;display:flex;position:fixed;inset:0}.peek-sheet{background:var(--card);border-radius:var(--radius-lg) var(--radius-lg) 0 0;width:100%;max-width:720px;max-height:92vh;padding:16px 20px calc(24px + env(safe-area-inset-bottom));animation:.25s cubic-bezier(.2,.9,.3,1) peek-up;overflow-y:auto}@keyframes peek-up{0%{opacity:0;transform:translateY(30px)}}.peek-sheet-head{background:var(--card);justify-content:space-between;align-items:center;margin:-16px 0 4px;padding:6px 0 10px;display:flex;position:sticky;top:-16px}.peek-close{background:var(--paper-deep);border-radius:50%;width:40px;height:40px;font-size:16px;font-weight:700}.peek-title{align-items:center;gap:10px;padding-bottom:8px;font-size:22px;display:flex}.peek-title .hear-button{width:42px;height:42px;font-size:17px}.peek-hook{font-family:var(--font-display);padding-bottom:8px;font-size:17px;font-weight:700;line-height:1.4}.peek-para{padding:5px 0;line-height:1.55}.peek-subhead{border-top:2px solid var(--line);margin-top:16px;padding:8px 0;font-size:16px}.peek-quiz{flex-direction:column;gap:14px;padding-left:20px;display:flex}.peek-q{padding-bottom:4px;font-weight:700}.peek-quiz ul{padding:0;list-style:none}.peek-quiz ul li{color:var(--ink-soft);padding:3px 0}.peek-correct{font-weight:700;color:var(--ink)!important}.peek-tick{color:#4caf50}.peek-why{color:var(--ink-soft);padding-top:4px;font-size:14px;font-style:italic}.peek-note{background:var(--paper-deep);border-radius:var(--radius-md);margin-bottom:8px;padding:10px 14px;line-height:1.5}.peek-evidence{padding-left:20px;line-height:1.6}.peek-mastery{margin:20px auto 0;display:block}.peek-mastery.undo{background:var(--ink-soft);box-shadow:0 6px #16394b4d}.check-card{background:var(--card);border-radius:var(--radius-md);box-shadow:var(--shadow-card);padding:14px 16px}.check-card h3{padding-bottom:4px;font-size:16px}.check-card p{line-height:1.5}.check-actions{flex-wrap:wrap;gap:10px;padding-top:10px;display:flex}.check-yes,.check-no{border-radius:999px;padding:8px 14px;font-size:14px;font-weight:700}.check-yes{color:#256029;background:#e9f7e9}.check-no{background:var(--paper-deep);color:var(--ink-soft)}.voice-field{background:var(--card);border-radius:var(--radius-md);box-shadow:var(--shadow-card);flex-direction:column;gap:8px;padding:14px 16px;font-weight:700;display:flex}.voice-field select{border-radius:var(--radius-md);border:2px solid var(--line);background:var(--paper);color:var(--ink);max-width:100%;padding:10px;font-family:inherit;font-size:15px;font-weight:400}.voice-field input[type=range]{accent-color:var(--coral)}.profile-card{background:var(--card);border-radius:var(--radius-md);box-shadow:var(--shadow-card);padding:12px 16px}.profile-card-head{justify-content:space-between;align-items:center;display:flex}.profile-age-edit{color:var(--ink-soft);align-items:center;gap:8px;margin-top:10px;font-size:14px;font-weight:700;display:flex}.age-chip{background:var(--paper-deep);width:34px;height:34px;color:var(--ink);border-radius:50%;font-weight:700}.age-chip.picked{background:var(--thogai-teal);color:#fff}.parent-data-actions{gap:10px;padding-top:8px;display:flex}.parent-data-actions .cta{padding:10px 20px;font-size:16px}.parent-about{line-height:1.55}.parent-attribution{color:var(--ink-soft);border-top:1px solid var(--line);padding-top:12px;font-size:13px}.loading{font-family:var(--font-display);color:var(--ink-soft);justify-content:center;align-items:center;font-size:22px}